"use client"

import { useState, useCallback, useRef, useEffect } from "react"
import { AIChat } from "@/components/ai/ai-chat"
import { JobSelector } from "@/components/ai/job-selector"
import { Bot, ChevronRight } from "lucide-react"

const tips = [
  "Ask for cold email templates for a specific job",
  "Request objection handling tips",
  "Ask for outreach strategies per industry",
  "Generate a follow up sequence",
  "Get LinkedIn connection message templates",
]

export default function AIAssistantPage() {
  const [selectedJob, setSelectedJob] = useState<{ job_title: string; keywords: string[]; industry: string; description: string } | null>(null)
  const [recentPrompts, setRecentPrompts] = useState<string[]>([])
  const aiChatRef = useRef<{ fillInput: (text: string) => void } | null>(null)

  const handleJobSelect = useCallback((job: typeof selectedJob) => {
    setSelectedJob(job)
  }, [])

  const handleTipClick = useCallback((tip: string) => {
    aiChatRef.current?.fillInput(tip)
  }, [])

  const handleRecentPromptClick = useCallback((prompt: string) => {
    aiChatRef.current?.fillInput(prompt)
  }, [])

  const handleMessageSent = useCallback((msg: string) => {
    setRecentPrompts((prev) => {
      const next = [msg, ...prev.filter((p) => p !== msg)].slice(0, 3)
      return next
    })
  }, [])

  return (
    <div className="flex h-[calc(100vh-3.5rem)] bg-[#0f1117]">
      <div className="flex-1 flex flex-col min-w-0">
        <div className="bg-[#1a1d2e]/80 backdrop-blur-md border-b border-[#ffffff08] px-6 py-4">
          <div className="flex items-center justify-between">
            <div className="flex items-center gap-4">
              <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-[#f97316] to-[#ea580c] flex items-center justify-center shadow-[0_0_40px_rgba(249,115,22,0.3)]">
                <Bot className="h-5 w-5 text-white" />
              </div>
              <div>
                <h1 className="text-white font-bold text-lg">AI Sales Assistant</h1>
                <p className="text-[#6b7280] text-xs mt-0.5">Powered by local AI</p>
              </div>
            </div>
            <div className="flex items-center gap-4">
              <div className="flex items-center gap-2">
                <span className="w-2 h-2 rounded-full bg-[#22c55e] animate-pulse" />
                <span className="text-[#22c55e] text-xs font-medium">Online</span>
              </div>
              <div className="w-px h-5 bg-[#ffffff08]" />
              <div className="bg-[#ffffff08] rounded-lg px-3 py-1.5">
                <span className="text-[#9ca3af] text-xs">Local AI Model</span>
              </div>
            </div>
          </div>
        </div>
        <AIChat ref={aiChatRef} onMessageSent={handleMessageSent} />
      </div>
      <div className="w-[300px] flex-none bg-[#13151f] border-l border-[#ffffff08] p-5 overflow-y-auto h-full flex flex-col">
        <div>
          <div className="flex items-center gap-2 mb-3">
            <span className="w-1.5 h-1.5 rounded-full bg-[#f97316]" />
            <span className="text-[#f97316] text-[10px] font-bold uppercase tracking-[0.15em]">Target Job</span>
          </div>
          <JobSelector onSelect={handleJobSelect} />
          {selectedJob && (
            <div className="bg-[#1a1d2e]/50 border border-[#ffffff08] rounded-xl p-3.5 mt-3 space-y-2">
              <h4 className="text-sm font-semibold text-[#e5e7eb]">{selectedJob.job_title}</h4>
              <span className="text-xs px-2 py-0.5 rounded-md bg-[#f97316]/10 text-[#f97316] font-medium inline-block">{selectedJob.industry}</span>
              <p className="text-xs text-[#6b7280] leading-relaxed">{selectedJob.description}</p>
              <div className="flex flex-wrap gap-1.5">
                {selectedJob.keywords.map((kw, i) => (
                  <span key={i} className="text-xs px-2 py-0.5 rounded-md bg-[#ffffff08] text-[#4b5563]">{kw}</span>
                ))}
              </div>
            </div>
          )}
        </div>
        <div className="mt-6">
          <div className="flex items-center gap-2 mb-3">
            <span className="w-1.5 h-1.5 rounded-full bg-[#f97316]" />
            <span className="text-[#f97316] text-[10px] font-bold uppercase tracking-[0.15em]">Quick Tips</span>
          </div>
          {tips.map((tip, i) => (
            <div
              key={i}
              onClick={() => handleTipClick(tip)}
              className="flex items-start gap-2.5 bg-[#1a1d2e]/50 hover:bg-[#1a1d2e] border border-[#ffffff08] hover:border-[#f97316]/20 rounded-xl p-3.5 mb-2 cursor-pointer transition-all duration-200 group"
            >
              <ChevronRight className="h-3.5 w-3.5 mt-0.5 text-[#374151] group-hover:text-[#f97316] transition-colors duration-200 flex-shrink-0" />
              <span className="text-[#9ca3af] text-xs leading-5 group-hover:text-[#e5e7eb] transition-colors duration-200">{tip}</span>
            </div>
          ))}
        </div>
        <div className="mt-6">
          <div className="flex items-center gap-2 mb-3">
            <span className="w-1.5 h-1.5 rounded-full bg-[#f97316]" />
            <span className="text-[#f97316] text-[10px] font-bold uppercase tracking-[0.15em]">Recent Prompts</span>
          </div>
          {recentPrompts.length > 0 ? (
            recentPrompts.map((prompt, i) => (
              <div
                key={i}
                onClick={() => handleRecentPromptClick(prompt)}
                className="bg-[#1a1d2e]/50 rounded-xl p-3 mb-2 border border-[#ffffff08] text-[#6b7280] text-xs truncate hover:text-[#9ca3af] cursor-pointer transition-colors duration-200"
              >
                {prompt}
              </div>
            ))
          ) : (
            <div className="text-[#374151] text-xs text-center py-4">Your recent prompts will appear here</div>
          )}
        </div>
        <div className="mt-auto border-t border-[#ffffff08] pt-4">
          <div className="flex gap-4">
            <div className="flex-1">
              <div className="text-[#4b5563] text-[10px] uppercase tracking-wide">Messages today</div>
              <div className="text-[#e5e7eb] text-sm font-semibold mt-0.5">24</div>
            </div>
            <div className="flex-1">
              <div className="text-[#4b5563] text-[10px] uppercase tracking-wide">Tokens used</div>
              <div className="text-[#e5e7eb] text-sm font-semibold mt-0.5">12.4k</div>
            </div>
          </div>
        </div>
      </div>
    </div>
  )
}
